Transmastoid Repair of Otogenic Encephaloceles in Patients With Canal Wall Down Mastoidectomy.

Abstract

OBJECTIVE:

Description of a series of cases in which otogenic encephaloceles in patients requiring canal wall down (CWD) mastoidectomies were repaired via a transmastoid approach.

STUDY DESIGN:

Case series.

SETTING:

Tertiary-care hospital.

PATIENTS:

Eleven cases of otogenic encephaloceles in patients requiring CWD mastoidectomy for chronic ear disease.

INTERVENTIONS:

Surgical repair of an otogenic encephalocele using a transmastoid approach.

MAIN OUTCOME MEASURES:

Success of repair, number and size of defects, materials used for repair, complications encountered in surgery, pure tone average air-bone gap (PTA-ABG).

RESULTS:

Eleven cases were identified. Two of these patients had a prior CWD cavity while the remainder received CWD mastoidectomy simultaneously with encephalocele repair. None of the patients required revision of encephalocele repair. Mean preoperative PTA-ABG was 30 dB and mean postoperative PTA-ABG was 28 dB (p = 0.66).

CONCLUSIONS:

A single-stage strictly transmastoid approach to otogenic encephalocele repair may be effective in patients with prior CWD mastoid cavities or requiring concurrent CWD mastoidectomy for chronic ear disease and/or cholesteatoma.

• Authors: Tirth R Patel, Alexa S Roy, Ali Z Piracha, Elias Michaelides, R Mark Wiet
• Journal: Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology (Otol Neurotol) Vol. 43 Issue 4 Pg. 460-465 (04 01 2022) ISSN: 1537-4505 [Electronic] United States
• PMID: 35287151 (Publication Type: Journal Article)
• Copyright: Copyright © 2022, Otology & Neurotology, Inc.

Topics

• Cholesteatoma, Middle Ear (complications, surgery)
• Ear Canal (surgery)
• Encephalocele (complications, surgery)
• Humans
• Mastoid (surgery)
• Mastoidectomy (adverse effects)
• Retrospective Studies
• Treatment Outcome